/Engine/Source/Runtime/Engine/Public/Rendering/SkeletalMeshLODModel.h
Some section data also impact dependent generated LOD, those member should be add to the DDC Key and trig a rebuild if they are change.
struct FSkelMeshSourceSectionUserData
bool
bCastShadow
This section will cast shadow
bool
bDisabled
If disabled, we won't render this section
bool
bRecomputeTangent
This section will recompute tangent in runtime
bool
bVisibleInRayTracing
If true, this section will be visible in ray tracing effects.
FClothingSectio...
ClothingData
Clothing data for this section, clothing is only present if ClothingData.IsValid() returns true
int16
CorrespondClothAssetIndex
INDEX_NONE if not set.
int32
GenerateUpToLodIndex
The LOD index at which any generated lower quality LODs will include this section.
ESkinVertexColo...
RecomputeTangentsVertexMaskChannel
Vertex color channel to use to mask recompute tangent